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Metal Injection Molding of Co-28Cr-6Mo
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Metal Injection Molding of Co-28Cr-6Mo
 
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Metal Injection Molding of Co-28Cr-6Mo
From Advanced Powder Products, Inc.
 

 
Metal injection molding of gas- and water-atomized Co-28Cr- 6Mo powders is evaluated. Sintering is conducted in different atmospheres to evaluate their effects on sintering response and carbon, nitrogen, and oxygen contents. The effects of hot isostatic pressing and heat treat on the mechanical properties are investigated. Properties are correlated to the interstitial content and microstructure. Optimized processing gives mechanical properties that exceed ASTM requirements for cast and wrought Co-28Cr-6Mo.

Cobalt-chromium alloys are commonly used for surgical implants because of their high strength, superior corrosion resistance, non-magnetic behavior, and biocompatibility. Applications include prosthetic replacements of hips, knees, elbows, shoulders, ankles, and fingers; bone plates, screws, staples, and rods; and heart valves [1]. Material properties for various compositions and processing routes are covered by a number of ASTM specifications. Co-28Cr-6Mo is a common composition and can be cast (ASTM F75), wrought (ASTM F1537), or forged (ASTM F799). Due to the shape complexity of surgical implants, casting is often the selected processing route. For higher volume applications, metal injection molding (MIM) can compete favorably with castings on cost.


Products & Services
Metal injection molding (MIM) services use a powder metallurgy process to manufacture metal parts.
Titanium and titanium alloys are non-ferrous metals with excellent corrosion resistance, fatigue properties, and a high strength-to-weight ratio.
Mold bases and mold plates are used to support molds and tooling in injection molding, compression molding and resin transfer molding (RTM) processes.
Copper, brass and bronze alloys are non-ferrous metals with excellent electrical and thermal conductivity as well as good corrosion resistance, ductility and strength.
Isostatic presses are used for compressing powdered materials into shaped pre-forms or general products. There are two main types of isostatic presses; cold isostatic presses (CIP) that function at room temperature and hot isostatic presses (HIP) that function at elevated temperatures.
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Product Announcements
Polymer Technologies Inc. - Metal Injection Molding
Polymer Technologies is a leader in advanced Metal Injection Molding. They operate an integrated facility with strict controls of all production steps from feedstock manufacturing to molding and high... (read more)
Control Plastics, Inc. - MIM- Metal Injection Molding
Don't let the name fool you. Control Plastics offers Metal Injection Molding (MIM) for years to help thier clients achieve their goals. (read more)
Indo-US MIM Tec Pvt. Ltd. - Dot Matrix Printer MIM Component
The MIM process is capable of molding this part as one piece! Orginally, multiple operations were required to manufacture this part. Indo-US MIM can reduce cost and improve yield on complex, 3... (read more)
Indo-US MIM Tec Pvt. Ltd. - Metal Injection Molding Services
Indo-US MIM Tec Pvt. Ltd., is located in Bangalore, India. They are engaged in manufacturing and supply of MIM parts. Metal Injection Molding or MIM can produce complex shaped three-dimensional... (read more)
Kinetics, A Freeport McMoRan Company - Visit Kinetics @ MD&M Minneapolis Booth 631
Visit Kinetics at the upcoming MD&M Show in Minneapolis, MN October 23-25, 2008! Come by and visit us at booth 631 and request one of our new complimentary USB drives. (read more)
Kinetics, A Freeport McMoRan Company - Metal Injection Molding
Metal Injection Molding or MIM, also called Powder Injection Molding or PIM, is a net-shape process for producing solid metal parts that combines the design freedom of plastic injection molding with... (read more)
Kinetics, A Freeport McMoRan Company - Kinetics at Nat'l Design Engineering Booth 3940
Visit Kinetics booth 3940 at the upcoming National Design Engineering Show in Rosemont, IL September 23-25, 2008!... (read more)
Advanced Powder Products, Inc. - Metal Injection Molding Sintering
APP offers sintering services for metal injection molding. We have 4 all metal hot zone furnaces, 3 low temperature debinding retorts, and a few small development furnaces for hydrogen sintering. (read more)
Polymer Technologies Inc. - Toll Sintering
Polymer Technologies, Inc. (PTI) is a leader in custom metal injection molding (MIM) production services and has extensive experience in all aspects of the contract manufacturing of complex,... (read more)
 
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Topics of Interest
Challenge:A medical device manufacturer had a requirement for an implant grade component. The component was rife for metal injection molding (MIM), however, standard implant material such as titanium... (Read More)
Functional grading of components requires the design and fabrication of two or more material systems whose combination endows unique properties, specific to the desired application. An example is the... (Read More)
Malleable-Iron Threaded Fittings Malleable-iron fittings are also extensively produced. They are generally made with threaded joints. Malleable-iron threaded fittings for Classes 150 and 300 are... (Read More)
Powder Metallurgy (PM) has advanced considerably during the last seventy years. This paper describes the conventional press & sinter process used for manufacturing highly sophisticated net-shape metal... (Read More)
Porous 316L stainless steel structures have been fabricated via metal injection molding (MIM) for both water- and gas-atomized powders. The metal injection molding process offers the unique ability to... (Read More)
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